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We live day by day,but in the great things,the time of days and weeks_______so small that a day is unimportant.

A.is                                                                B.are

C.has been                                                       D.have been

We live day by day ,but in the great things, the time of days and weeks ______so small that a day is unimportant.

A.     is  B.are  C.has been  D.have been

We live day by day ,but in the great things, the time of days and weeks ______so small that a day is unimportant.

A.     is  B.are  C.has been  D.have been

We live day by day, but in the great things, the time of days and weeks __________ so small that a day is unimportant.

A. is       B. are

C. has been     D. have been

We live day by day, but in the great things, the time of days and weeks _________ so small that a day is unimportant.

   A. is            B. are           C. has been            D. have been